IMHO, In keeping with my quote in the topic title, when on an investigation with my daughter's group NJGO - New Jersey Ghost Organization, I work with a pendulum, still digital camera (sometimes a film camera or either can be replaced with a camcorder), a digital voice recorder in my pocket with a external microphone clipped to the brim of my cap along with a tiny cap light.

By keeping it simple, you may find that you can move around more easily, capturing more positive results and you may just enjoy investigating more! I can't emphasize that you do not need elaborate, expensive equipment.

Here's an example of an anomaly on one of our recent investigatios, an extremely known to be haunted theater, where our Psychic felt a presence behind her ... Enjoy!